<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head>
<meta http-equiv="content-type" content="text/html; charset=ISO-8859-1" />
<title>MutationStrategy xref</title>
<link type="text/css" rel="stylesheet" href="../../../../../stylesheet.css" />
</head>
<body>
<div id="overview"><a href="../../../../../../apidocs/com/totsp/gwittir/client/fx/MutationStrategy.html">View Javadoc</a></div><pre>

<a name="1" href="#1">1</a>   <em class="jxr_comment">/*</em>
<a name="2" href="#2">2</a>   <em class="jxr_comment"> * MutationStrategy.java</em>
<a name="3" href="#3">3</a>   <em class="jxr_comment"> *</em>
<a name="4" href="#4">4</a>   <em class="jxr_comment"> * Created on August 3, 2007, 2:41 PM</em>
<a name="5" href="#5">5</a>   <em class="jxr_comment"> *</em>
<a name="6" href="#6">6</a>   <em class="jxr_comment"> * This library is free software; you can redistribute it and/or</em>
<a name="7" href="#7">7</a>   <em class="jxr_comment"> * modify it under the terms of the GNU Lesser General Public</em>
<a name="8" href="#8">8</a>   <em class="jxr_comment"> * License as published by the Free Software Foundation; either</em>
<a name="9" href="#9">9</a>   <em class="jxr_comment"> * version 2.1 of the License, or (at your option) any later version.</em>
<a name="10" href="#10">10</a>  <em class="jxr_comment"> *</em>
<a name="11" href="#11">11</a>  <em class="jxr_comment"> * This library is distributed in the hope that it will be useful,</em>
<a name="12" href="#12">12</a>  <em class="jxr_comment"> * but WITHOUT ANY WARRANTY; without even the implied warranty of</em>
<a name="13" href="#13">13</a>  <em class="jxr_comment"> * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU</em>
<a name="14" href="#14">14</a>  <em class="jxr_comment"> * Lesser General Public License for more details.</em>
<a name="15" href="#15">15</a>  <em class="jxr_comment"> *</em>
<a name="16" href="#16">16</a>  <em class="jxr_comment"> * You should have received a copy of the GNU Lesser General Public</em>
<a name="17" href="#17">17</a>  <em class="jxr_comment"> * License along with this library; if not, write to the Free Software</em>
<a name="18" href="#18">18</a>  <em class="jxr_comment"> * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA</em>
<a name="19" href="#19">19</a>  <em class="jxr_comment"> */</em>
<a name="20" href="#20">20</a>  <strong class="jxr_keyword">package</strong> com.totsp.gwittir.client.fx;
<a name="21" href="#21">21</a>  
<a name="22" href="#22">22</a>  <strong class="jxr_keyword">import</strong> com.totsp.gwittir.client.util.UnitsParser;
<a name="23" href="#23">23</a>  <strong class="jxr_keyword">import</strong> com.totsp.gwittir.client.util.UnitsParser.UnitValue;
<a name="24" href="#24">24</a>  
<a name="25" href="#25">25</a>  
<a name="26" href="#26">26</a>  <em class="jxr_javadoccomment">/**</em>
<a name="27" href="#27">27</a>  <em class="jxr_javadoccomment"> * MutationStrategy is a class that takes in the original value</em>
<a name="28" href="#28">28</a>  <em class="jxr_javadoccomment"> * of a property, the percentage complete of the animation and the</em>
<a name="29" href="#29">29</a>  <em class="jxr_javadoccomment"> * percent complete, and returns the value the object should be at.</em>
<a name="30" href="#30">30</a>  <em class="jxr_javadoccomment"> *</em>
<a name="31" href="#31">31</a>  <em class="jxr_javadoccomment"> * &lt;p&gt;A number of default implementations are made available.&lt;/p&gt;</em>
<a name="32" href="#32">32</a>  <em class="jxr_javadoccomment"> * @author &lt;a href="<a href="mailto:cooper@screaming-penguin.com" target="alexandria_uri">mailto:cooper@screaming-penguin.com</a>"&gt;Robert "kebernet" Cooper&lt;/a&gt;</em>
<a name="33" href="#33">33</a>  <em class="jxr_javadoccomment"> */</em>
<a name="34" href="#34">34</a>  <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">interface</strong> <a href="../../../../../com/totsp/gwittir/client/fx/MutationStrategy.html">MutationStrategy</a> {
<a name="35" href="#35">35</a>      <em class="jxr_javadoccomment">/**</em>
<a name="36" href="#36">36</a>  <em class="jxr_javadoccomment">     * A Sinoidal (slow-fast-slow) MutationStrategy for Integer/int properties.</em>
<a name="37" href="#37">37</a>  <em class="jxr_javadoccomment">     */</em>
<a name="38" href="#38">38</a>      <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">final</strong> <a href="../../../../../com/totsp/gwittir/client/fx/MutationStrategy.html">MutationStrategy</a> INTEGER_SINOIDAL = <strong class="jxr_keyword">new</strong> <a href="../../../../../com/totsp/gwittir/client/fx/MutationStrategy.html">MutationStrategy</a>() {
<a name="39" href="#39">39</a>              <strong class="jxr_keyword">public</strong> Object mutateValue(Object from, Object to,
<a name="40" href="#40">40</a>                  <strong class="jxr_keyword">double</strong> percentComplete) {
<a name="41" href="#41">41</a>                  <strong class="jxr_keyword">double</strong> f = ((Integer) from).doubleValue();
<a name="42" href="#42">42</a>                  <strong class="jxr_keyword">double</strong> t = ((Integer) to).doubleValue();
<a name="43" href="#43">43</a>                  <strong class="jxr_keyword">double</strong> offset = ((
<a name="44" href="#44">44</a>                          -Math.cos((<strong class="jxr_keyword">double</strong>) percentComplete * Math.PI) / 2d
<a name="45" href="#45">45</a>                      ) + 0.5d);
<a name="46" href="#46">46</a>  
<a name="47" href="#47">47</a>                  <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">new</strong> Integer((<strong class="jxr_keyword">int</strong>) Math.round((offset * (t - f)) + f));
<a name="48" href="#48">48</a>              }
<a name="49" href="#49">49</a>          };
<a name="50" href="#50">50</a>  
<a name="51" href="#51">51</a>      <em class="jxr_javadoccomment">/**</em>
<a name="52" href="#52">52</a>  <em class="jxr_javadoccomment">     * A Linear (constant-speed) MutationStrategy for Integer/int properties.</em>
<a name="53" href="#53">53</a>  <em class="jxr_javadoccomment">     */</em>
<a name="54" href="#54">54</a>      <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">final</strong> <a href="../../../../../com/totsp/gwittir/client/fx/MutationStrategy.html">MutationStrategy</a> INTEGER_LINEAR = <strong class="jxr_keyword">new</strong> <a href="../../../../../com/totsp/gwittir/client/fx/MutationStrategy.html">MutationStrategy</a>() {
<a name="55" href="#55">55</a>              <strong class="jxr_keyword">public</strong> Object mutateValue(Object from, Object to,
<a name="56" href="#56">56</a>                  <strong class="jxr_keyword">double</strong> percentComplete) {
<a name="57" href="#57">57</a>                  <strong class="jxr_keyword">double</strong> f = ((Integer) from).doubleValue();
<a name="58" href="#58">58</a>                  <strong class="jxr_keyword">double</strong> t = ((Integer) to).doubleValue();
<a name="59" href="#59">59</a>  
<a name="60" href="#60">60</a>                  <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">new</strong> Integer((<strong class="jxr_keyword">int</strong>) Math.round((
<a name="61" href="#61">61</a>                              percentComplete * (t - f)
<a name="62" href="#62">62</a>                          ) + f));
<a name="63" href="#63">63</a>              }
<a name="64" href="#64">64</a>          };
<a name="65" href="#65">65</a>  
<a name="66" href="#66">66</a>      <em class="jxr_javadoccomment">/**</em>
<a name="67" href="#67">67</a>  <em class="jxr_javadoccomment">     * A Cubic (constantly accellerating) MutationStrategy for Integer/int properties</em>
<a name="68" href="#68">68</a>  <em class="jxr_javadoccomment">     */</em>
<a name="69" href="#69">69</a>      <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">final</strong> <a href="../../../../../com/totsp/gwittir/client/fx/MutationStrategy.html">MutationStrategy</a> INTEGER_CUBIC = <strong class="jxr_keyword">new</strong> <a href="../../../../../com/totsp/gwittir/client/fx/MutationStrategy.html">MutationStrategy</a>() {
<a name="70" href="#70">70</a>              <strong class="jxr_keyword">public</strong> Object mutateValue(Object from, Object to,
<a name="71" href="#71">71</a>                  <strong class="jxr_keyword">double</strong> percentComplete) {
<a name="72" href="#72">72</a>                  <strong class="jxr_keyword">double</strong> f = ((Integer) from).doubleValue();
<a name="73" href="#73">73</a>                  <strong class="jxr_keyword">double</strong> t = ((Integer) to).doubleValue();
<a name="74" href="#74">74</a>                  <strong class="jxr_keyword">double</strong> offset = Math.pow(percentComplete, 3);
<a name="75" href="#75">75</a>  
<a name="76" href="#76">76</a>                  <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">new</strong> Integer((<strong class="jxr_keyword">int</strong>) Math.round((offset * (t - f)) + f));
<a name="77" href="#77">77</a>              }
<a name="78" href="#78">78</a>          };
<a name="79" href="#79">79</a>  
<a name="80" href="#80">80</a>      <em class="jxr_javadoccomment">/**</em>
<a name="81" href="#81">81</a>  <em class="jxr_javadoccomment">     * A Sinoidal (slow-fast-slow) MutationStrategy for properties with units (px/%/etc)</em>
<a name="82" href="#82">82</a>  <em class="jxr_javadoccomment">     */</em>
<a name="83" href="#83">83</a>      <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">final</strong> <a href="../../../../../com/totsp/gwittir/client/fx/MutationStrategy.html">MutationStrategy</a> UNITS_SINOIDAL = <strong class="jxr_keyword">new</strong> <a href="../../../../../com/totsp/gwittir/client/fx/MutationStrategy.html">MutationStrategy</a>() {
<a name="84" href="#84">84</a>              <strong class="jxr_keyword">public</strong> Object mutateValue(Object from, Object to,
<a name="85" href="#85">85</a>                  <strong class="jxr_keyword">double</strong> percentComplete) {
<a name="86" href="#86">86</a>                  <a href="../../../../../com/totsp/gwittir/client/util/UnitsParser.html">UnitValue</a> tv = UnitsParser.parse( to == <strong class="jxr_keyword">null</strong> ? <strong class="jxr_keyword">null</strong> : to.toString() );
<a name="87" href="#87">87</a>                  <strong class="jxr_keyword">double</strong> f = (<strong class="jxr_keyword">double</strong>) UnitsParser.parse( from == <strong class="jxr_keyword">null</strong> ? <strong class="jxr_keyword">null</strong> : from.toString()).value;
<a name="88" href="#88">88</a>                  <strong class="jxr_keyword">double</strong> t = (<strong class="jxr_keyword">double</strong>) tv.value;
<a name="89" href="#89">89</a>                  <strong class="jxr_keyword">double</strong> offset = ((
<a name="90" href="#90">90</a>                          -Math.cos((<strong class="jxr_keyword">double</strong>) percentComplete * Math.PI) / 2d
<a name="91" href="#91">91</a>                      ) + 0.5d);
<a name="92" href="#92">92</a>  
<a name="93" href="#93">93</a>                  <strong class="jxr_keyword">return</strong> Math.round((offset * (t - f)) + f) + tv.units;
<a name="94" href="#94">94</a>              }
<a name="95" href="#95">95</a>          };
<a name="96" href="#96">96</a>  
<a name="97" href="#97">97</a>      <em class="jxr_javadoccomment">/**</em>
<a name="98" href="#98">98</a>  <em class="jxr_javadoccomment">     * A Linear (constant-speed) MutationStrategy for properties with units (px/%/etc)</em>
<a name="99" href="#99">99</a>  <em class="jxr_javadoccomment">     */</em>
<a name="100" href="#100">100</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">final</strong> <a href="../../../../../com/totsp/gwittir/client/fx/MutationStrategy.html">MutationStrategy</a> UNITS_LINEAR = <strong class="jxr_keyword">new</strong> <a href="../../../../../com/totsp/gwittir/client/fx/MutationStrategy.html">MutationStrategy</a>() {
<a name="101" href="#101">101</a>             <strong class="jxr_keyword">public</strong> Object mutateValue(Object from, Object to,
<a name="102" href="#102">102</a>                 <strong class="jxr_keyword">double</strong> percentComplete) {
<a name="103" href="#103">103</a>                 <a href="../../../../../com/totsp/gwittir/client/util/UnitsParser.html">UnitValue</a> tv = UnitsParser.parse((String) to);
<a name="104" href="#104">104</a>                 <strong class="jxr_keyword">double</strong> f = (<strong class="jxr_keyword">double</strong>) UnitsParser.parse((String) from).value;
<a name="105" href="#105">105</a>                 <strong class="jxr_keyword">double</strong> t = (<strong class="jxr_keyword">double</strong>) tv.value;
<a name="106" href="#106">106</a> 
<a name="107" href="#107">107</a>                 <strong class="jxr_keyword">return</strong> Math.round((percentComplete * (t - f)) + f) + tv.units;
<a name="108" href="#108">108</a>             }
<a name="109" href="#109">109</a>         };
<a name="110" href="#110">110</a> 
<a name="111" href="#111">111</a>     <em class="jxr_javadoccomment">/**</em>
<a name="112" href="#112">112</a> <em class="jxr_javadoccomment">     * A Cubic (constantly accellerating) MutationStrategy for properties with units (px/%/etc)</em>
<a name="113" href="#113">113</a> <em class="jxr_javadoccomment">     */</em>
<a name="114" href="#114">114</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">final</strong> <a href="../../../../../com/totsp/gwittir/client/fx/MutationStrategy.html">MutationStrategy</a> UNITS_CUBIC = <strong class="jxr_keyword">new</strong> <a href="../../../../../com/totsp/gwittir/client/fx/MutationStrategy.html">MutationStrategy</a>() {
<a name="115" href="#115">115</a>             <strong class="jxr_keyword">public</strong> Object mutateValue(Object from, Object to,
<a name="116" href="#116">116</a>                 <strong class="jxr_keyword">double</strong> percentComplete) {
<a name="117" href="#117">117</a>                 <a href="../../../../../com/totsp/gwittir/client/util/UnitsParser.html">UnitValue</a> tv = UnitsParser.parse((String) to);
<a name="118" href="#118">118</a>                 <strong class="jxr_keyword">double</strong> f = (<strong class="jxr_keyword">double</strong>) UnitsParser.parse((String) from).value;
<a name="119" href="#119">119</a>                 <strong class="jxr_keyword">double</strong> t = (<strong class="jxr_keyword">double</strong>) tv.value;
<a name="120" href="#120">120</a>                 <strong class="jxr_keyword">double</strong> offset = Math.pow(percentComplete, 3);
<a name="121" href="#121">121</a> 
<a name="122" href="#122">122</a>                 <strong class="jxr_keyword">return</strong> Math.round((offset * (t - f)) + f) + tv.units;
<a name="123" href="#123">123</a>             }
<a name="124" href="#124">124</a>         };
<a name="125" href="#125">125</a> 
<a name="126" href="#126">126</a>     <em class="jxr_javadoccomment">/**</em>
<a name="127" href="#127">127</a> <em class="jxr_javadoccomment">     * A Sinoidal (slow-fast-slow) MutationStrategy for Double/double properties.</em>
<a name="128" href="#128">128</a> <em class="jxr_javadoccomment">     */</em>
<a name="129" href="#129">129</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">final</strong> <a href="../../../../../com/totsp/gwittir/client/fx/MutationStrategy.html">MutationStrategy</a> DOUBLE_SINOIDAL = <strong class="jxr_keyword">new</strong> <a href="../../../../../com/totsp/gwittir/client/fx/MutationStrategy.html">MutationStrategy</a>() {
<a name="130" href="#130">130</a>             <strong class="jxr_keyword">public</strong> Object mutateValue(Object from, Object to,
<a name="131" href="#131">131</a>                 <strong class="jxr_keyword">double</strong> percentComplete) {
<a name="132" href="#132">132</a>                 <strong class="jxr_keyword">double</strong> f = ((Double) from).doubleValue();
<a name="133" href="#133">133</a>                 <strong class="jxr_keyword">double</strong> t = ((Double) to).doubleValue();
<a name="134" href="#134">134</a>                 <strong class="jxr_keyword">double</strong> offset = ((
<a name="135" href="#135">135</a>                         -Math.cos((<strong class="jxr_keyword">double</strong>) percentComplete * Math.PI) / 2d
<a name="136" href="#136">136</a>                     ) + 0.5d);
<a name="137" href="#137">137</a> 
<a name="138" href="#138">138</a>                 <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">new</strong> Double((offset * (t - f)) + f);
<a name="139" href="#139">139</a>             }
<a name="140" href="#140">140</a>         };
<a name="141" href="#141">141</a> 
<a name="142" href="#142">142</a>     <em class="jxr_javadoccomment">/**</em>
<a name="143" href="#143">143</a> <em class="jxr_javadoccomment">     * A Linear (constant-speed) MutationStrategy for Double/double properties.</em>
<a name="144" href="#144">144</a> <em class="jxr_javadoccomment">     */</em>
<a name="145" href="#145">145</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">final</strong> <a href="../../../../../com/totsp/gwittir/client/fx/MutationStrategy.html">MutationStrategy</a> DOUBLE_LINEAR = <strong class="jxr_keyword">new</strong> <a href="../../../../../com/totsp/gwittir/client/fx/MutationStrategy.html">MutationStrategy</a>() {
<a name="146" href="#146">146</a>             <strong class="jxr_keyword">public</strong> Object mutateValue(Object from, Object to,
<a name="147" href="#147">147</a>                 <strong class="jxr_keyword">double</strong> percentComplete) {
<a name="148" href="#148">148</a>                 <strong class="jxr_keyword">double</strong> f = ((Double) from).doubleValue();
<a name="149" href="#149">149</a>                 <strong class="jxr_keyword">double</strong> t = ((Double) to).doubleValue();
<a name="150" href="#150">150</a> 
<a name="151" href="#151">151</a>                 <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">new</strong> Double((percentComplete * (t - f)) + f);
<a name="152" href="#152">152</a>             }
<a name="153" href="#153">153</a>         };
<a name="154" href="#154">154</a> 
<a name="155" href="#155">155</a>     <em class="jxr_javadoccomment">/**</em>
<a name="156" href="#156">156</a> <em class="jxr_javadoccomment">     * A Cubic (constantly accellerating) MutationStrategy for Double/double properties</em>
<a name="157" href="#157">157</a> <em class="jxr_javadoccomment">     */</em>
<a name="158" href="#158">158</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">final</strong> <a href="../../../../../com/totsp/gwittir/client/fx/MutationStrategy.html">MutationStrategy</a> DOUBLE_CUBIC = <strong class="jxr_keyword">new</strong> <a href="../../../../../com/totsp/gwittir/client/fx/MutationStrategy.html">MutationStrategy</a>() {
<a name="159" href="#159">159</a>             <strong class="jxr_keyword">public</strong> Object mutateValue(Object from, Object to,
<a name="160" href="#160">160</a>                 <strong class="jxr_keyword">double</strong> percentComplete) {
<a name="161" href="#161">161</a>                 <strong class="jxr_keyword">double</strong> f = ((Double) from).doubleValue();
<a name="162" href="#162">162</a>                 <strong class="jxr_keyword">double</strong> t = ((Double) to).doubleValue();
<a name="163" href="#163">163</a>                 <strong class="jxr_keyword">double</strong> offset = Math.pow(percentComplete, 3);
<a name="164" href="#164">164</a> 
<a name="165" href="#165">165</a>                 <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">new</strong> Double((offset * (t - f)) + f);
<a name="166" href="#166">166</a>             }
<a name="167" href="#167">167</a>         };
<a name="168" href="#168">168</a> 
<a name="169" href="#169">169</a>     <em class="jxr_javadoccomment">/**</em>
<a name="170" href="#170">170</a> <em class="jxr_javadoccomment">     * Calculates the current value based on the "from", "to" and "percentage complete" values.</em>
<a name="171" href="#171">171</a> <em class="jxr_javadoccomment">     * @param from The original value of the property</em>
<a name="172" href="#172">172</a> <em class="jxr_javadoccomment">     * @param to The final value of the property</em>
<a name="173" href="#173">173</a> <em class="jxr_javadoccomment">     * @param percentComplete The percentage complete of the animation</em>
<a name="174" href="#174">174</a> <em class="jxr_javadoccomment">     * @return The current value of the property/</em>
<a name="175" href="#175">175</a> <em class="jxr_javadoccomment">     */</em>
<a name="176" href="#176">176</a>     Object mutateValue(Object from, Object to, <strong class="jxr_keyword">double</strong> percentComplete);
<a name="177" href="#177">177</a> }
</pre>
<hr/><div id="footer">This page was automatically generated by <a href="http://maven.apache.org/">Maven</a></div></body>
</html>

